As of March 2018, the list contains
623
photographed species (including those planted);
197
non-native (marked *), of which
38
are invasive (marked **).
Osmunda cinnamomea
—
cinnamon fern
— photos:
[
1]
[
2]
— [
map]
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Naturally present and planted (nursery origin, provenance unknown) Chamaecyparis thyoides
—
Atlantic white cedar
— photos:
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1]
[
2]
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3]
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4]
— [
map]
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Planted. Closest found naturally occurring SSW of Tidmarsh, outside bounding box * Yucca filamentosa
—
Spanish bayonet, Adam's needle
— [
map]
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At garden waste dump behind a backyard south of Tidmarsh Farms Iris prismatica
—
slender blueflag
— photos:
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1]
[
2]
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3]
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map]
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Watch-Listed. Planted. Provenance: Harwich Elymus virginicus
—
wild rye
— photos:
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1]
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2]
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3]
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4]
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map]
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Found in 2017; supposedly, introduced by restoration company * Eragrostis curvula
—
weeping lovegrass
— photos:
[
1]
[
2]
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map]
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Found in 2017; supposedly, introduced by restoration company Panicum verrucosum
—
Warty panic grass
— photos:
[
1]
— [
map]
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On bog outside Tidmarsh Farms, within bounding box Sorghastrum nutans
—
Indian grass
— photos:
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1]
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2]
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3]
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4]
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5]
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6]
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7]
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8]
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9]
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map]
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Claimed to be native across MA in "MA County Checklist"; however, in eastern MA never appears in unmodified plant communities; favorite plant of restoration companies for introductions (nickname:"white engineer's foot") Spartina pectinata
—
freshwater or prairie cordgrass
— photos:
[
1]
[
2]
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map]
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Adventive in Tidmarsh (discovered after the completion of restoration in 2017) Asclepias tuberosa
—
butterfly milkweed
— photos:
[
1]
[
2]
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map]
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Planted; previously introduced to "Mars" in a seed mix * Liatris spicata
—
spiked balzing-star
— photos:
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1]
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2]
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3]
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4]
[
5]
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6]
[
7]
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map]
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Formerly introduced to "Mars" in seed mix ** Cabomba caroliniana
—
Carolina fanwort
— photos:
[
1]
— [
map]
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Found outside Tidmarsh Farms territory, but within bounding box (Little Island Pond, Beaver Dam Cons. Area) Elatine minima
—
lesser waterwort
— photos:
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1]
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2]
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3]
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4]
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5]
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6]
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map]
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Found outside Tidmarsh Farms territory, but within bounding box (Little Island Pond, Beaver Dam Cons. Area) Myriophyllum humile
—
lowly watermilfoil
— photos:
[
1]
— [
map]
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Outside Tidmarsh territory, in Beaver Dam Cons. Area * Lamium galeobdolon
—
yellow henbit, yellow archangel
— photos:
[
1]
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map]
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Outside Tidmarsh territory, in Beaver Dam Cons. Area Rhexia virginica
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northern meadowbeauty, wingstem meadowpitchers
— photos:
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1]
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2]
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3]
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4]
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5]
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map]
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Naturally occurring and planted * Fagopyrum esculentum
—
buckwheat
— photos:
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1]
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2]
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3]
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4]
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5]
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6]
[
7]
[
8]
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map]
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First recorded in 2017. Presumably deliberate introduction by restoration company ** Polygonum x bohemicum
—
Bohemian knotweed
— [
map]
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Outside Tidmarsh territory, Little Island Pond, Beaver Dam Conservation Area Amelanchier spicata
—
running serviceberry, running shadbush
— photos:
[
1]
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2]
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map]
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Naturally occurring and planted Prunus maritima
—
beach plum
— photos:
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1]
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2]
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3]
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4]
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map]
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Naturally occurring along Bartlett Rd. and planted Mitchella repens
—
partridgeberry
— photos:
[
1]
— [
map]
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Outside Tidmarsh Territory, in Beaver Dam Cons. Area
Salix discolor
—
large pussy willow
— photos:
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1]
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2]
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3]
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4]
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5]
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6]
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7]
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8]
[
9]
[
10]
— [
map]
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Naturally occurs in small amount and planted Salix eriocephala
—
heartleaf willow
— photos:
[
1]
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map]
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Naturally occurs in small amount and planted Salix nigra
—
black willow
— photos:
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1]
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2]
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3]
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4]
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5]
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6]
[
7]
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map]
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Naturally occurs in small amount and planted Salix sericea
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silky willow
— photos:
[
1]
[
2]
— [
map]
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Naturally occurs in small amount and planted * Tilia cordata
—
small-leaved linden
— photos:
[
1]
[
2]
[
3]
— [
map]
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Outside Tidmarsh Territory, in Beaver Dam Cons. Area
(20 December, 2018)